Title :
RF system of VEPP-4M electron-positron collider
Author :
Gorniker, E. ; Abramsky, P. ; Arbuzov, V. ; Belomestnykh, S. ; Bushuyev, A. ; Fomin, M. ; Kuptsov, I. ; Kurkin, G. ; Nosyrev, S. ; Petrov, V. ; Sedlyarov, I. ; Veshcherevich, V.
Author_Institution :
Budker Inst. of Nucl. Phys., Novosibirsk, Russia
Abstract :
RF system of the VEPP-4M collider consists of six 181 MHz copper cavities fed from a single RF power source. The cavity has a Q of 50,000 and a shunt impedance of 15 MOhm. The cavities are connected to a waveguide distributing system with the aid of coaxial lines. The distance between cavity connections is equal to one wave length. Dimensions of the rectangular waveguide are chosen in such a way that the guide wave length is equal to two free-space wave length. Power distribution along the cavity chain is proportional to the distribution of cavity shunt impedances due to a proper design of the coax-to-waveguide transitions. The two-tube tetrode amplifier presently has an output RF power of 300 kW. After upgrading of the RF system its power will increase to 1.2 MW
Keywords :
accelerator RF systems; accelerator cavities; electron accelerators; storage rings; 1.2 MW; 181 MHz; 300 kW; Cu cavities; RF power source; RF system; VEPP-4M electron-positron collider; cavity connections; coax-to-waveguide transitions; coaxial lines; guide wave length; output RF power; rectangular waveguide; shunt impedance; two-tube tetrode amplifier; waveguide distributing system; Acceleration; Coaxial components; Copper; Impedance; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Rectangular waveguides; Steel; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505326
